<style>
.icons {
	margin: 6px auto;
}
.icons span {
	float: left; 
	width: 150px;
}
</style>
<div class="icons hide">
<span> <i class="u_icon-setting"></i> icon-setting</span>
<span> <i class="u_icon-data-safty"></i> icon-data-safty</span>
<span> <i class="u_icon-device-manager"></i> icon-device-manager</span>
<span> <i class="u_icon-statistics"></i> icon-statistics</span>
</div>